Gor’kavyi, V. A. and Nevmerzhitskaya, E. N. (2016) “Degenerate Backlund transformation”, Ukrains’kyi Matematychnyi Zhurnal, 68(1), pp. 38-51. Available at: https://umj.imath.kiev.ua/index.php/umj/article/view/1820 (Accessed: 28February2024).